3658563 has 6 divisors (see below), whose sum is σ = 5284604. Its totient is φ = 2439036.

The previous prime is 3658547. The next prime is 3658607.

3658563 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3658563 - 2⁴ = 3658547 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3658513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203245 + ... + 203262.

Almost surely, 2^3658563 is an apocalyptic number.

3658563 is a deficient number, since it is larger than the sum of its proper divisors (1626041).

3658563 is a wasteful number, since it uses less digits than its factorization.

3658563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406513 (or 406510 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3658563 is about 1912.7370441334. The cubic root of 3658563 is about 154.0884829117.

The spelling of 3658563 in words is "three million, six hundred fifty-eight thousand, five hundred sixty-three".